Bug 1913348 (CVE-2020-36158) - CVE-2020-36158 kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value
Summary: CVE-2020-36158 kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start fun...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-36158
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1913349 1914995 1914996 1914998 1914999 1915000
Blocks: 1913350
TreeView+ depends on / blocked
 
Reported: 2021-01-06 14:56 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-03-25 17:45 UTC (History)
46 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel. The marvell wifi driver could allow a local attacker to execute arbitrary code via a long SSID value in mwifiex_cmd_802_11_ad_hoc_start function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2021-11-08 16:52:53 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4140 0 None None None 2021-11-09 17:21:31 UTC
Red Hat Product Errata RHSA-2021:4356 0 None None None 2021-11-09 18:23:21 UTC

Description Guilherme de Almeida Suckevicz 2021-01-06 14:56:47 UTC 
mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value.

Reference and upstream patch:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c455c5ab332773464d02ba17015acdca198f03d
Comment 1 Guilherme de Almeida Suckevicz 2021-01-06 14:57:41 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1913349]
Comment 4 Alex 2021-01-11 17:44:11 UTC 
Mitigation:

To mitigate this issue, prevent the module mwifiex from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.
Comment 5 Petr Matousek 2021-01-14 12:14:15 UTC 
Statement:

This issue is rated as having Moderate impact because the attacker needs to be local and privileged enough to be able to initiate ad-hoc WIFI network creation.
Comment 20 errata-xmlrpc 2021-11-09 17:21:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4140 https://access.redhat.com/errata/RHSA-2021:4140
Comment 21 errata-xmlrpc 2021-11-09 18:23:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4356 https://access.redhat.com/errata/RHSA-2021:4356
Note You need to log in before you can comment on or make changes to this bug.